package deom2;

public class IntegerMy {
    public static void main(String[] args) {
        Integer a = Integer.valueOf(3);
        System.out.println(a);
        a = a.intValue();
        System.out.println(a);

        Integer integer = 123456;
        String s = String.valueOf(integer);
        System.out.println(s);

        String s1 = "2345678";
        double s2 = Double.parseDouble(s1);
        a.intValue();
        System.out.println(s2);
    }
}
